Defender Mats Hummels will leave Borussia Dortmund ahead of the new season, the club said on Friday. “Borussia Dortmund and defender Mats Hummels will part ways after more than 13 years of successful cooperation. This is the result of talks held this week between managing director for sport Lars Ricken, sporting director Sebastian Kehl and Mats Hummels,” the Champions League runers-up said in a statement. Hummels, 35, played at Dortmund 2008-2016 and returned in 2019 from boyhood club Bayern Munich. He wasn’t included in the Germany squad that will play the Euro 2024 this summer on home soil. …